Solar Panels in Southern California: What to Know in 2026
Updated September 14, 2026
Southern California solar estimates need the right house, the right electric supplier and the right usage profile. County-level or ZIP-level averages are not a substitute for the customer’s rate plan.
Start with the electric bill
Record the electric supplier, rate plan, annual kWh, time-of-use pattern and any separate generation provider. Do not use a combined water-and-power bill total as the amount solar can save.
Size the installation to the household
Review usable main-roof area, existing panels and household demand before choosing a layout. Where demand is unknown, SunPilot uses an explicitly illustrative panel limit. A qualified installer must confirm the final design.
Use rates with dates
Keep the tariff source and verification date with the estimate. September and October assumptions may differ; check seasonal rates and adjustment factors when updating a campaign. ZIP profiles in SunPilot keep SCE and LADWP scenarios separate, but each household’s service still needs confirmation.
September 2026: incentives and utility rules
The federal Residential Clean Energy Credit is unavailable for property placed in service after December 31, 2025. Do not subtract an automatic 30% residential credit from a 2026 quote. Verify any other incentive separately. IRS guidance.
New SCE systems generally use net billing: electricity used onsite offsets purchased energy, while exported generation earns a separate credit. LADWP has its own net metering rider. Confirm the electric provider and tariff on the homeowner’s bill; the water provider or ZIP alone is not proof of electric service. CPUC customer generation · LADWP rates and NEM.
SunPilot reports are illustrative scenarios until usage, rates and the proposed installation have been reviewed. Savings refer to electricity charges before equipment, financing and maintenance. Water, sewer and fixed charges are not assumed to disappear.